DATAMONGO-1455, DATAMONGO-1456 - Add support for $caseSensitive and $diacriticSensitive to $text.

We added methods to set values for $caseSensitive and $diacriticSensitive when using TextCriteria. Both operators are optional and will not be used until explicitly set.

    // { "$text" : { "$search" : "coffee" , "$caseSensitive" : true } }
    TextCriteria.forDefaultLanguage().matching("coffee").caseSensitive(true);

    // { "$text" : { "$search" : "coffee" , "$diacriticSensitive" : true } }
    TextCriteria.forDefaultLanguage().matching("coffee").diacriticSensitive(true);

Original pull request: #375.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/query/TextCriteria.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014 the original author or authors.
+ * Copyright 2014-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -36,6 +36,8 @@ public class TextCriteria implements CriteriaDefinition {
 
 	private final List<Term> terms;
 	private String language;
+	private Boolean caseSensitive;
+	private Boolean diacriticSensitive;
 
 	/**
 	 * Creates a new {@link TextCriteria}.
@@ -63,8 +65,8 @@ public class TextCriteria implements CriteriaDefinition {
 	}
 
 	/**
-	 * For a full list of supported languages see the mongodb reference manual for <a
-	 * href="http://docs.mongodb.org/manual/reference/text-search-languages/">Text Search Languages</a>.
+	 * For a full list of supported languages see the mongodb reference manual for
+	 * <a href="http://docs.mongodb.org/manual/reference/text-search-languages/">Text Search Languages</a>.
 	 * 
 	 * @param language
 	 * @return
@@ -167,6 +169,32 @@ public class TextCriteria implements CriteriaDefinition {
 		return this;
 	}
 
+	/**
+	 * Optionally enable or disable case sensitive search.
+	 *
+	 * @param caseSensitive boolean flag endable/disable.
+	 * @return never {@literal null}.
+	 * @since 1.10
+	 */
+	public TextCriteria caseSensitive(boolean caseSensitive) {
+
+		this.caseSensitive = caseSensitive;
+		return this;
+	}
+
+	/**
+	 * Optionallly enable or disable diacritic sensitive search against version 3 text indexes.
+	 *
+	 * @param diacriticSensitive boolean flag endable/disable.
+	 * @return never {@literal null}.
+	 * @since 1.10
+	 */
+	public TextCriteria diacriticSensitive(boolean diacriticSensitive) {
+
+		this.diacriticSensitive = diacriticSensitive;
+		return this;
+	}
+
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.data.mongodb.core.query.CriteriaDefinition#getKey()
@@ -193,6 +221,14 @@ public class TextCriteria implements CriteriaDefinition {
 			builder.add("$search", join(terms));
 		}
 
+		if (caseSensitive != null) {
+			builder.add("$caseSensitive", caseSensitive);
+		}
+
+		if (diacriticSensitive != null) {
+			builder.add("$diacriticSensitive", diacriticSensitive);
+		}
+
 		return new BasicDBObject("$text", builder.get());
 	}
 

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/core/query/TextCriteriaUnitTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014 the original author or authors.
+ * Copyright 2014-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,6 +21,7 @@ import org.junit.Test;
 import org.springframework.data.mongodb.core.DBObjectTestUtils;
 
 import com.mongodb.BasicDBObject;
+import com.mongodb.BasicDBObjectBuilder;
 import com.mongodb.DBObject;
 import com.mongodb.util.JSON;
 
@@ -115,6 +116,29 @@ public class TextCriteriaUnitTests {
 				IsEqual.<DBObject> equalTo(new BasicDBObject("$search", "-\"coffee cake\"")));
 	}
 
+	/**
+	 * @see DATAMONGO-1455
+	 */
+	@Test
+	public void caseSensitiveOperatorShouldBeSetCorrectly() {
+
+		TextCriteria criteria = TextCriteria.forDefaultLanguage().matching("coffee").caseSensitive(true);
+		Assert.assertThat(DBObjectTestUtils.getAsDBObject(criteria.getCriteriaObject(), "$text"), IsEqual
+				.<DBObject> equalTo(new BasicDBObjectBuilder().add("$search", "coffee").add("$caseSensitive", true).get()));
+	}
+
+	/**
+	 * @see DATAMONGO-1456
+	 */
+	@Test
+	public void diacriticSensitiveOperatorShouldBeSetCorrectly() {
+
+		TextCriteria criteria = TextCriteria.forDefaultLanguage().matching("coffee").diacriticSensitive(true);
+		Assert.assertThat(DBObjectTestUtils.getAsDBObject(criteria.getCriteriaObject(), "$text"),
+				IsEqual.<DBObject> equalTo(
+						new BasicDBObjectBuilder().add("$search", "coffee").add("$diacriticSensitive", true).get()));
+	}
+
 	private DBObject searchObject(String json) {
 		return new BasicDBObject("$text", JSON.parse(json));
 	}

src/main/asciidoc/reference/mongodb.adoc

@@ -1356,6 +1356,8 @@ TextQuery.searching(new TextCriteria().matching("\"coffee cake\""));
 TextQuery.searching(new TextCriteria().phrase("coffee cake"));
 ----
 
+The flags for `$caseSensitive` and `$diacriticSensitive` can be set via the according methods on `TextCriteria`. Please note that these two optional flags have been introduced in MongoDB 3.2 and will not be included in the query unless explicitly set.
+
 include::../{spring-data-commons-docs}/query-by-example.adoc[leveloffset=+1]
 include::query-by-example.adoc[leveloffset=+1]